All 3 have bluetooth 5. I have a medium width foot and they fit fine. Sarah captures what being horse crazy is all about: self discovery, triumph, humility, history, obsession, wild abandon, mystery, and a new way to be. This is a trickster type of tale. Even tried a different size. Veremos a ver en verano. Only negative is the rubber watch band which can get a bit whiffy if you wear it constantly (wearing at night it tracks your sleep indicating deep sleep and light sleep) but there are plenty of inexpensive leather straps you can buy online and easily fit and it is easily cleaned anyway. My first impressions are, sound great, sleek packaging, comfortable fit. I had to buy shorts to wear underneath so you couldn?t see my whole ass, it fits big in some spots and tight in others I?m also pregnant so that could be to blame also. Anything higher would just hurt my feet due to the lack of arch in them.